Churn-dasher.



Patented November 10, 1903.

PATENT OFFICE.

EDWARD A. FRANKLIN, OE AUSTIN, TEXAS.

CHURN-DASHER.

SPECIFICATION forming part of Letters Patent No. 743,479, dated November 10, 1903. Application tiled March 28, 1908. Serial No. 150,035. (No model.)

To @ZZ whom it may concern,.-

Beit known that l, EDWARD A. FRANKLIN, a citizen of the United States, residing at Austin, in the county of Travis and State of Texas, haveinvente'd anew and useful Ghurn- Dasher, of which the following is a specification.

My invention relates to churn-dashers, and is especially directed to dashers of the rotary type, and has for its objects to produce a device of this character which will be simple of construction, efcient in operation, and one in which the cream will upon contact with the blades of the dasher during the operation of churning be completely turned over and directed downward toward the bottom of the churn.

To these ends the invention comprises the novel details of construction and combination of parts more fullyhereinafter described.

In the accompanying drawings, Figure 1 is a vertical transverse sectional elevation of a churn having my improved dasher applied thereto. Fig. 2 is a top plan View of the dasher. Fig. 3 is a bottom plan view of the same.

Referring to the drawings, 1 indicates a churn-body mounted upon a base 2, which sustains avertical bracket 3, having ahorizontal arm 4 overhanging the churn and forming a bearing for the upper end of the central dasher-operating shaft 5. The shaft 5 is operated from a spur-gear 6, journaled in the vertical bracket 3 and in mesh with a spurpinion 7, mounted at one end of a horizontal shaft 8, journaled in bearings sustained by the vertical standard, said shaft being provided at its other end with a bevel-gear 9, in mesh with a bevel-pinion 10, ixedly associated with the upper end of the shaft 5. These parts may all be of any suitable or desired construction, but are by preference of the form and mode of operation similar to the like parts disclosed in my prior patent,No. 615,154,

latter is comparatively wide.

the annular ring 13`by means of fingers 15, formed integral one with each of the dasherblades, which latter are further connected to a common central portion 16, which is perforated for the reception of the lower end of the sleeve.

The essence of my presentnvent-ion resides inthe peculiar formation of the dasher-blades 14, and inasmuch as they are identical in construction and operation I will describe but one in detail. Each blade gradually diverges in width from its point of meeting with the central portion 16 toward its outer end, which The blade where it unites with the central portion is substantially horizontal, but is gradually twisted transversely toward its outer widest portion, which latter at its terminal occupies a substantially vertical position. Thus the front face of the blade, which comes into contact with the cream during the operation of the device, curves downward and backward relative to the direction of rotation and will act to turn the cream entirely over and direct it forcibly downward toward the bottom of the churn. Further, it is to be noted that at the point Where the transverse twist of the blade begins the latter is also bent bodily backward at an angle relative to its inner substantially horizontal portion, so that the line of travel of the most active portion of the blade will be in a diagonal direction. Thus the cream will be swept or thrown from the center of the churn outward toward its periphery at the same time that it receives the overturning and downwardly-directing throw above described. Attention may here be directed to the fact that ordinarily during the operation of churns there is a certain percentage of the cream lying near the bottom of the vessel, which owing to the peculiar formation of dashers nowin use remains passive or unagitated, and consequently is never converted IOO practice will efficiently perform its functions for the proper attainment of the end in View, aud it is to be noted that I do not limit or confine myself to the precise details herein shown and described, inasmuch as minor changes may be made therein without departing from the spirit or scope of my invention.

Having thus described my invention, what I claim is 1. As a new article of manufacture, a churndasher comprising one or more blades having substantially horizontal inner ends and substantially vertical outer ends, the blades being curved transverselybackward and down- Ward relative to the direction of travel of the dasher from a point near their inner ends to their outer ends.

2. Asa new article of manufacture, achurndasher comprising one or more blades having substantially horizontal inner ends and substantially Vertical outer ends and diverging from their inner to their outer ends, ,said

blades being curved transversely backward and downward. relative to the direction of travel of the dasher from a point near their inner ends to their outer ends.

3. As a new article of manufacture, a churndasher comprising one or more blades having substantially horizontal inner ends and substantially vertical outer ends and diverging from their inner toward their outer ends, said blades being curved transversely backward and downward relative to the direction of travel of the dasher from a point near their inner ends to their outer ends, the blades being further bent backward bodily at a point adjacent to their horizontal portions to dispose them,v diagonally relative to the line of travel.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

EDWARD A. FRANKLIN.

Witnesses:

JAMES M. CALDWELL, C. P. FRANKLIN. 

